<script language="javascript" >

function reVal()

{
	window.opener.document.getElementById("text1").value=$("#point").val();
}

</script>
<script src="js/jquery-2.1.1.min.js" type="text/javascript"></script>

<form id="form1">

<input id=point width=150px/>
<input type="button" id=button1 onclick="reVal()"/>

</form>